/**
 * @file MultiTouchArea.qml
 * @brief Area for multitouch.
 * Copyright (c) 2013, Ford Motor Company
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * Redistributions of source code must retain the above copyright notice, this
 * list of conditions and the following disclaimer.
 *
 * Redistributions in binary form must reproduce the above copyright notice,
 * this list of conditions and the following
 * disclaimer in the documentation and/or other materials provided with the
 * distribution.
 *
 * Neither the name of the Ford Motor Company nor the names of its contributors
 * may be used to endorse or promote products derived from this software
 * without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

import QtQuick 1.1
import "../hmi_api/Common.js" as Common

MultiPointTouchArea {
    readonly property int created: Date.now()

    signal pressed(var touchPoints)
    signal released(var touchPoints)
    signal canceled(var touchPoints)
    signal updated(var touchPoints)

    function fillEvent(touchPoints) {
        var event = []
        for (var i = 0; i < touchPoints.length; ++i) {
            event.push({
                           id: touchPoints[i].pointId,
                           ts: [Date.now() - created],
                           c: [{ x: touchPoints.x, y: touchPoints.y }] // TODO(KKolodiy): need cast to int
                       })
        }
        return event
    }

    minimumTouchPoints: 1
    maximumTouchPoints: 10

    onPressed: {
        sdlUI.onTouchEvent(Common.BEGIN, fillEvent(touchPoints))
        parent.pressed(touchPoints)
    }
    onReleased: {
        sdlUI.onTouchEvent(Common.END, fillEvent(touchPoints))
        parent.released(touchPoints)
    }
    onCanceled: {
        sdlUI.onTouchEvent(Common.END, fillEvent(touchPoints))
        parent.canceled(touchPoints)
    }
    onUpdated: {
        sdlUI.onTouchEvent(Common.MOVE, fillEvent(touchPoints))
        parent.updated(touchPoints)
    }
}
